In my experience, these simple programs are best left exactly the way they were designed. There are plenty of options in the grey book, pick one and stick to it. consistency is the hardest part, i am just as tempted as anyone to think about complicating, advancing, and modifying programming...and every time i do i end up worse for it.
As far as comparing the relativity of your lifts, I dont think that is very useful since there is no universal guide that any one individual can use for any constructive purpose. The goal should be improving on all your lifts, not closing in on arbitrary percentages of one lift to another that you think are ideal.
And last, I think any SS coach would agree that getting stronger on a deficit is probably going to present challenges, unless you are just talking about cutting back macros that are already too high above baseline. Stan Efferding explains this well in the last podcast with Ray Gillenwater.